2. THE AGE OF ENLIGHTENMENT THE ENLIGHTENMENT - The Enlightenment was an intellectual movement that emerged in the 18 th century, especially, in England and France. - It was based on three pillars: 1. Reason - A tool to guide all knowledge, leading the understanding of the universe through science. 2. Critical thinking - A process to call into question anything not wellreasoned. 3.Progress - The idea that knowledge can transform society and improves human condition.